Expandable balloon mapping and ablation device

Abstract

The present disclosure relates to the field of tissue mapping and ablation. Specifically, the present disclosure relates to expandable medical devices for identifying and treating local anatomical abnormalities within a body lumen. More specifically, the present disclosure relates to systems and methods of focal treatment for overactive bladders.

What is claimed is: 
     
       1. A medical device, comprising:
 a balloon configured to move between a collapsed configuration and an expanded configuration; 
 an expandable-collapsible framework comprising a plurality of flexible splines and struts disposed about an outer surface of the balloon, wherein a distal end of the framework is attached to a distal end of the balloon such that the struts and splines are free-floating about the balloon; and 
 a plurality of electrodes carried about an outer surface of the framework, each of the plurality of electrodes positioned at an intersection of a flexible spline and strut of the plurality of flexible splines and struts. 
 
     
     
       2. The medical device of  claim 1 , wherein each of the plurality of electrodes extends outward from the surface of the framework. 
     
     
       3. The medical device of  claim 1 , further including a spacer disposed between the outer surface of the framework and one of the plurality of electrodes. 
     
     
       4. The medical device of  claim 1 , wherein each of the plurality of electrodes is electrically coupled to an ablation energy source. 
     
     
       5. The medical device of  claim 1 , wherein each of the plurality of electrodes is electrically coupled to an electrical activity processing system. 
     
     
       6. The medical device of  claim 1 , wherein each of the plurality of electrodes includes a sensing electrode, a mapping electrode, a stimulating electrode or an ablation electrode. 
     
     
       7. The medical device of  claim 1 , wherein a lumen of the balloon is in fluid communication with a fluid source, wherein the balloon moves from the collapsed configuration to the expanded configuration by flowing a fluid from the fluid source into the lumen of the balloon. 
     
     
       8. A medical device, comprising:
 a balloon configured to move between a collapsed configuration and an expanded configuration; 
 an expandable-collapsible framework comprising a plurality of flexible splines and struts disposed about an outer surface of the balloon, wherein the flexible splines are configured to bend and conform to the shape of the balloon in the expanded configuration, and wherein a distal end of the framework is attached to a distal end of the balloon such that the struts and splines are free-floating about the balloon; and 
 a plurality of electrodes carried about an outer surface of the framework, each of the plurality of electrodes positioned at an intersection of a flexible spline and strut of the plurality of flexible splines and struts. 
 
     
     
       9. The medical device of  claim 8 , wherein each of the plurality of electrodes extends outward from the surface of the framework. 
     
     
       10. The medical device of  claim 8 , further including a spacer disposed between the outer surface of the framework and one of the plurality of electrodes. 
     
     
       11. The medical device of  claim 8 , wherein each of the plurality of electrodes is electrically coupled to an ablation energy source. 
     
     
       12. The medical device of  claim 8 , wherein each of the plurality of electrodes is electrically coupled to an electrical activity processing system. 
     
     
       13. The medical device of  claim 8 , wherein each of the plurality of electrodes includes a sensing electrode, a mapping electrode, a stimulating electrode or an ablation electrode. 
     
     
       14. The medical device of  claim 8 , wherein a lumen of the balloon is in fluid communication with a fluid source, wherein the balloon moves from the collapsed configuration to the expanded configuration by flowing a fluid from the fluid source into the lumen of the balloon.